ISO 5940-1:2019Published

Carbonaceous materials for the production of aluminium — Pitch for electrodes — Part 1: Determination of softening point by the ring-and-ball method

Produits carbonés utilisés pour la production de l'aluminium — Brai pour électrodes — Partie 1: Détermination du point de ramollissement par la méthode bille et anneau

Abstract / scope

This document specifies the ring-and-ball method, a method of using the ring-and-ball apparatus for the determination of the softening point (softening temperature) of pitch used in the production of aluminium.

The method is applicable to pitches having softening points equal to or greater than 30 °C.

Life cycle

Replaces

ISO 5940:1981WithdrawnCarbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of softening point by the ring-and-ball methodInternational Standard · Published 1 May 1981 · ISO/TC 226